Mold or form for uniting metal pieces.



-C. F. JACOBS MOLD OR FORM'FOR UNITING METAL PEECES.

' APPLICATION FILED JULY24. 1915. 1,176,899.

Patented. Mar 28, 1916 m. w m I it it. nitrite a 5* dust t 31015:.) Gist FJEM FOR UNIT-ENG METAL FIEEGES.

Specification of Letters ff'atent.

rat-eaten Mar. as, with,

Application filed J 1117 2d, 1915 Eerie 230. 31,823. 1 v

To e221 whom it may concern Be it known that I, 'Cnlinnes F. JAcoBs,

a citizen of the United States, residing at Ch' go, in the county of Cook and State nois, have invented certain new and improvements in Molds or Forms ting Metal Pieces,'of which the fola specification. invention relates to improvements d. or form, which is especially inteln a, to be used in the art or process of electrically uniting metal pieces and particularly for uniting the rails of electric railways, and it consists in certain peculiarie construction, novelarrangement ition of the various parts thereof, as i no hereinafter more fully set forth and specifically claimed.

As is well known to those skilled in the art to which my invention pertains, the rails of electric railways are of irregular shape in cross-section, that is to say, the upright web or rib, the head or tread-flanges and the base of each rail, are of different cross sectional areas, and that in heating the adjacent ends of the rails so that they may be united to afi'ord a continuous rail with perfeet and permanent electric conductivity, the vparts having the smaller area will be more quickly heated to the required degree of temperature for welding or unition, by the action of the electric current and flux employed in the process, than those parts or portions of the rails having larger areas. Thus,'it will be seen and understood, that if the pieces to beunited, are of irregular shape in cross-section, the heating thereof to the required degreeof temperature for their union into one continuous piece, whether for electric conductivity or for any other purpose, will not be uniform, that is to say, the thinner portions will be overheated while the thicker portions are being raised to the proper degree of temperature.

To overcome this difi'iculty or objection, and to provide simple, inexpensive and etfi- -ci'ent means for application to the juncture of the rails or pieces to be joined, whereby they may lie quickly and substantially uniformly heated to therequired degree of temperature for unition, in the process of uniting said pieces, is the principal object of the present invention.

Other objects and advantages thereof will be disclosed in the subjoined description and explanation.

In the accompanying drawing which serves to illustrate an embodiment'of the.

invention-Figure l is a side view of a portion'of two railway-rails showing my improved mold or form applied thereto and surrounding a portion of each of said rails tional View taken on line 22 of Fig. 1 looking in the direction indicated by'the arrows. Fig. 3 is a crosssectional view taken on line 33 of Fig. 1 looking in the direction indicated by the arrows. Fig. 4'. is

a detached perspective view of one of the sides of the mold, showing the construction and arrangement of its parts on theinner surface thereof;

portions of the metal pieces to be joined togather, which pieces in the present instance,

are shown as being rails of the electric railway type, but which pieces may be those used for any other purpose, but which it is. desirable to unite at their adjacent ends in close and perfect union. As shown in Figs. 1 and 2 of the drawings, the rails or pieces and 6 are located in alinement with tine another, yet slightly separated at their adjacent ends, for the reception and retention of a suitable flux while in a molten or fused condition, which fl u xis employed in the process of uniting the metal pieces. and co-acts with the electric current, (which current may be applied to said pieces in any suitable man-' her) to the end that by reason of the resistance otth'e flux; the ends of the rails or pieces to and 6 will become heated to a suitable degree, when said pieces may be moved into intimate contact with one another, or otherwise united together.

Located on and against the lower surface of the base 7 of each of the pieces 5 and 6 and extended transversely thereof, as well as\ on each side of the space between said bases, is the base of the mold, which base is by preference, made 01. fire-clay, but/0f course can bemade of anvother suitable material. The base 8 of the mold is provided in its upper surface with adepression 9, which depression extends slightly under the free end of each of the'bases 7 of the pieces 5 and 6, as is clearly shown in Fig. l, and send depressionalso'extends a slight d1sat their adjacent ends. Fig 2 ma plan sect ance outwardly from each side of the bases as is clearly shown in Fig. 3 me. This arrangement will permit the molten flux when it is placed between the ends of the pieces 5 and f; to pass slightly under the bases of said pieces and slightly to each side thereof as is obvious. hlounted on the upper surface of the base 8 of the mold. and on one side of the pieces 5 and (i is one of the side pieces 10 of the mold which side piece is also by preference, made of refractory material and has the main portion of its inner surface formed to correspond with that side of the metal pieces to which it is applied. That is to say, said side piece of the mold has inwardly extended portions 11 which are of such shape as tocorrespond with the shape of the rails or metal pieces between the bases 7 and the flanges 12 thereof at their upper portions. The portions or parts 11 are separated at their outer portions by means of a vertical slot 123 which slot'extends from the upper end] of the piece it) to the lower outer portions of the parts 11 as will be readily understood by reference to Figs. 3 and 4; of the drawing. The upper portion of the piece 10 i provided above the upper end of the parts 11 with an inward extension it which lies over the edges of the head flanges 12, but said extension is provided with a vertical slot 13 which communicates or registers with the slot 13. ()n the opposite side of the pieces 5 and 6 or rails, is located another piece 15 of the mold; which rests at its lower end on the base 8 of the mold and has the main portion of i; inner surface provided with inwardly projecting portions or extensions 11 which portions also correspond with the shape of the sides of the pieces 5 and -t3- against which the piece 15 of the mold is applied. The parts or portions .11 of the piece 15 are also separated by means of a vertical slot. 16 which extends from the upper ends of the portions l1 to and through the lower ends thereof as will. be understood by reference. to Figs. 3 and 3 of the drawin in the latter of which figures it will be seen that the upper ends of the portions "ll of the side piece 15 terminate below but rest against the lower surface of the head flanges 17 which are extended latorally from the upper portion of the web or rib 18 of the rails.

Each of the parts '11 of each of the side pieces; 10 and 1:; of the mold, is provided in its portion adjacent, to the webs .18 of the rails with vertical recesses 15) in each of which recesses is located an insert or piece 20 of metal, which pieces may be held in position by means of chaplets 21 en'ibedded in the portions fl and engaging. the inserts or metal pieces. The upper ends of the side pieces 1t) and 15 of the mold are located flush with the upper surface of the flange l2 as shown in Figs. 1 and 2 of the drawing.

of the draw- 1n the grooves or spaces formed by the flanges 17 and the upper portion of each of the rails located a block 22 the adjacent ends of which terminate at the adjacent ends ofdlhe. pieces .3 and 6, thus leaving an open space between said blocks 22 in register with the slot 16 in the side piece 15 of the mold. which latter slot communicates with the slots 13 and '13 in the other side piece of the mold.

Located on the upper ends of the side pieces 10 and 15 as well as on the upper surfaces of the blocks 22-is a cap piece 23 which is provided with an upwardly flared opening 24 the lower portion of which opening registers or coincides with slots 13, l3

and it; as well as the space between the adjacent ends of the pieces 5 and 6 which are to be united. Through the opening 24 in the cap piece 23, the molten flux may be poured, when it is obvious that a portion of the flux will be located under the adjacent ends of each of the pieces 5 and ti and that the adjacent ends of said rails as well as the adjacent surfaces of the. inserts or pieces 20 will be in contact with said flux, thus substantially equalizing in cross section the parts of the pieces or rails which are to be heated in the process of uniting the same.

It is obvious that the pieces or parts of which the mold is formed can be clamped. or held in position, on the pieces which they surround by any suitable means.

It is apparent, that the slots in the pieces of the mold, and also the inserts can be enlarged or reduced to meet different conditions and could be extended with metal. alltogether to the full width of the crosssection of the rails or other metal pieces. It is also manifest that the mold of refractory material having slots communicating with the depression in the base of the mold can sometimes be used without the inserts, and various other niotlif'ications in the construction of the mold, may be made without departing from the spirit of the invention.

llaving thus fully described my invention what I claim as new and desire to secure by Letters Patent is l. A mold 'or form surroiu'iding two spaced apart' pieces at their approximated ends and having a vertically disposed slot open at its upper end. and in communication with the space between said pieces, and provided on each side of said pieces at the adjacent ends thereof and on the adjacent faces of said slot with an insert or piece adapteitto contact with the first named pieces.

2. A mold or form adapted to surround two spaced apart pieces at their approximated ends and having a. vertically disposed slot open at its upper end and adapted for communication with the space between said pieces, said mold also having in the bottom of its cavity a depression adapted to underlie the adjacent ends of the bases of said pieces and provided on the adjacent faces of said slot with a pair of spaced apart inserts or pieces.

3. A mold or form consisting of a pair of side-pieces joined together at their lower portions and each having a vertical slot in its inner surface, and an insert or piece located on the inner surface of each side-piece and on each side of the slot therein and flush with the adjacent faces of said slots.

4. A mold or having a depression pair of side-pieces each having in its inner in its upper surface, a mounted thereon and surface an open ended vertical slot in communication with said depression, and an insert or piece'located on the inner surface of each sideform consisting of a base on each side of the slot therein, and a cap having an opening to communicate with said slots and mounted on the upper ends of the side pieces. 6. A side-pieces joined portions and each its inner surface, an insert or piece located on the inner surface of each side piece and on each side of the slot therein, a pair of filling blocks located horizontally on the inner upper portion of one of said side pieces, and a cap piece having an opening to communicate with said slots and mounted on the upper ends of said side pieces.

7. A mold or form consisting of a pair of side pieces joined portions and each having a vertical slot in its inner surface, having on its inner or upper surface a depression communicating with said slots at their lower ends and adapted to underlie the adjacent ends of the bases of the pieces to be joined together.

CHARLES F. JACOBS.

mold or form consisting of a pair of together at their lower having a vertical slot in A Witnesses:

A. J. LOESLEIN, A. R. FERGUSON.

together at their lower the bottom of said mold- 

